Synonyms: Ethanal
CAS Number: 75-07-0
Formula: C2H4O
Formula Weight: 44.05
Linear Formula: CH3CHO
MDL No.: MFCD00006991
Purity: >=99.5%
Boiling Point: 21 C(lit.)
Melting Point: -125 C (lit.)
Density: 0.785 g/mL at 25 C(lit.)
Refractive Index: n20/D 1.332(lit.)
Storage: 2-8C
Beilstein Registry Number: 505984
EC Number: 200-836-8
UNSPSC Code: 12352100
General description: Acetaldehyde is an industrially important solvent used as an intermediate for the synthesis of a wide range of compounds. On oxidation it forms acetic acid and ethanol on reduction. The interaction of Criegee intermediate (CH2OO) with acetaldehyde has been measured. Its effect as a neuroactive agent has been studied. Alkynylation reaction of acetaldehyde by asymmetric catalysis has been reported.
Application: Acetaldehyde may be used in the synthesis of 1,3-diamines by one-pot cross double-Mannich reaction and β-amino aldehydes by proline-catalyzed Mannich reaction.
RTECS: AB1925000
RIDADR: UN1089 - class 3 - PG 1 - Acetaldehyde
WGK Germany: 1
Flash Point(F): -40 F
Flash Point(C): -40 C
R Codes: 12-36/37-40
S Codes: 16-33-36/37
IOD Codes: F+,Xn
Symbol: GHS02, GHS07, GHS08
Signal Word: Danger
Hazard Statements: H224-H319-H335-H351
Precautionary statements: P210-P280-P305 + P351 + P338-P370 + P378-P403 + P235